That's exactly how I handle these interviews nowadays. Granted, it'd hard to know what's your price when you're young and you would take everything in the early years. But now I'm mid 30 and have seen and executed enough interviews to know that the rational thinking and kind human is so much more worth than a code monkey that is twice as fast. Why? It's the same reason why code should be readable - you have to live with it. And the only way to achieve this is by asking for the way of thinking, now what's the solution is.